18353 Participants Needed

Vitamin D + Omega-3 for Depression

(VITAL-DEP Trial)

Stay on Your Current MedsYou can continue your current medications while participating
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

Trial Summary

What is the purpose of this trial?

The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is an ongoing randomized clinical trial in 25,871 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids (Omacor® fish oil, 1 gram) reduces the risk of developing cancer, heart disease, and stroke in people who do not have a prior history of these illnesses. This ancillary study is being conducted among participants in VITAL and will examine whether vitamin D or fish oil: 1) reduces risk of clinical depressive syndrome, 2) yields better mood scores over time, compared to placebo.

Research Team

OI

Olivia I Okereke, MD, SM

Principal Investigator

Brigham and Women's Hospital

Eligibility Criteria

This trial is for adults in the VITAL study without a history of major neurological disorders, clinical hypothyroidism, significant depression, or recent substance abuse. They shouldn't be on psychotherapy or psychotropics (except mild sedatives) and must not have had core depressive symptoms for two weeks in the past two years.

Inclusion Criteria

I am not currently in psychotherapy or taking any mood-altering drugs, except for mild sleep aids.
I haven't had a major neurological disorder or delirium in the last year.
I haven't had major depression symptoms for 2+ weeks in the last 2 years.
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Treatment Details

Interventions

  • Fish Oil Placebo
  • Omega-3 Fatty Acids (Fish Oil)
  • Vitamin D3
  • Vitamin D Placebo
Trial OverviewThe VITAL-DEP study tests if daily supplements of vitamin D3 (2000 IU) or omega-3 fatty acids (1 gram fish oil) can prevent clinical depression and improve mood over time compared to placebos in individuals without prior cancer, heart disease, or stroke.
Participant Groups
4Treatment groups
Active Control
Group I: Vitamin D + fish oil placeboActive Control2 Interventions
Vitamin D3 (cholecalciferol), 2000 IU per day Fish oil placebo
Group II: Vitamin D placebo + fish oil placeboActive Control2 Interventions
Vitamin D placebo Fish oil placebo
Group III: Vitamin D + fish oilActive Control2 Interventions
Vitamin D3 (cholecalciferol), 2000 IU per day Omacor, 1 capsule per day. Each capsule of Omacor contains 840 milligrams of marine omega-3 fatty acids (465 mg of eicosapentaenoic acid \[EPA\] and 375 mg of docosahexaenoic acid \[DHA\])
Group IV: Vitamin D placebo + fish oilActive Control2 Interventions
Vitamin D placebo Omacor, 1 capsule per day. Each capsule of Omacor contains 840 milligrams of marine omega-3 fatty acids (465 mg of eicosapentaenoic acid \[EPA\] and 375 mg of docosahexaenoic acid \[DHA\])

Find a Clinic Near You

Who Is Running the Clinical Trial?

Brigham and Women's Hospital

Lead Sponsor

Trials
1,694
Recruited
14,790,000+

National Institute of Mental Health (NIMH)

Collaborator

Trials
3,007
Recruited
2,852,000+